Ratchet-wrench.



J. F. BRIOR.

RATCHEY WRENCH.

APPLICATION FILED JUNE 20. I917.

1 ,27 3,726. Patented July 23,1918.

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UNITED STATES PATENTOFFICE.

JONAS E. 133103, or EASTON, IVPENNSYLV'AH'IA,

BATCHET-WRENGH.

To all whomit may COHGGTW/I- Be it known that I, J ONAS F. BmoR, a citizen of the United States,;1esidingat Easton, in the-county ofNorthampton and State of Pennsylvania, have invented certain new and useful Improvements in Ratchet-Wrenches, of which the following isa specification.

This invention relates to wrenches and more particularly to the'class of ratchet wrenches. a i I I The primary object of the invention is to provide an improved ratchet wrenchhaving adjustable gripping jaws mounted'torotate when the handle of the wrench isactuated so that the nut to which the wrench is applied may be turned. I i I t 5 Another obj ect=ofthe invention isto provide a rotatable ratchet disk adapted to be rotated in one direction when the handle of the wrench is reciprocated so that the jaws carried by the disk will rotate around a common center and within a minimum space. A further object of this-invention'fis the provisionof a ratchet wrench which .con sists of comparatively few parts and is simple in construction, butdurableand well adapted to withstand} the rough usage to which devices of this character are ordinarily subjected. 7

For a full description of the'invention and the advantages and merits thereof, reference is to be had to the following description and the accompanying drawings, wherein is illustrated the preferred form of my invention, in which 1;

Figure l is a side elevation. Fig 2 is a longitudinal section.

Fig. 3 is a section on the line of Fig. l.

Fig. 4 is a section on the line L -40f Fig. 2.

Referring to the drawing, wherein is illustrated the preferred'fo'rm of my invention, and in which likenumerals of reference indicate corresponding parts throughout the several views, the head of the wrench includes a' casing 1 which is of circular formation and of comparatively shallow depth. The ends'of the casing are partially closed by circular rings 2 and 3 which are secured to the casing through themedium of fastening screws 4 or the like and its rings overlap a portion at each end of the casing to form retaining flanges. Mounted in the space embraced by the casing is a rotatable ratchet disk 5 having a plurality of circum- Specificationof Letters Patent. ,23,11918, I Applicationfiled June 20,1917. -sena11vo.175,919.- i I ferentially spaced teeth 6 on the casingsothat the disk'is permittedto freely rotate within the casing. A- handle edge. The diameter of this ratchet disk'is shghtly less than the'interior diameter of 7 is integrally fonned withor otherwise fastened to the casing and its handle isdivided into two sections. pivotally I connectedgtogether on a pivotpin 8 extending-through the overlapping portions of -the: handle sections. An enlarged. portion 9Iof the handle is provided with. an opening1O communicating, with the interior of theycasing. and a' locking pin 11 ismounted in the. opening and extends into thecasing. This pin,gas

shown to advantage in Figs. land 20f the drawing projects outwardly from ,th'e enlarged portion, 9 of thehandle-f throughla shield 12 fiXedto the handle and which;has

- an opening a for receiving the; pin. 15 Sur- 'roundlng the p111, and mounted in 'an enlarged portion of the openlng 10 18 21, co l expansion spring '13; engagii'ig a flange formed on the pin to urge the: pininto' the casing for engagement with the teethfi. of

prevented by the. straight ,sideof thepin from-rotating in the opposite'direction- The central portion of the ratchet 7 disk 5 isprovided with a rectangularopening lfi communicating with one edge of the disk-at which: point the .;teeth are, removed. gflhe side walls of thisjopeninglare provided with longitudinally extending slots 16 and 17 V in whichare;receivedthe-tongues 18'of=,the movable jaws 19 and 20 thus holding the jaws in a restricted path whereby theymay be moved toward or away from each other for adjustment to various sizes of nutsor bolts. The open end of the opening 15 is closed, after the jaws have been placedinto position, by theclosure 21 which fitsinto the end of the opening 15 and has oppositely disposed lugs extending into the ends of the grooves 16 and 17, the lugs being provided with openings through which fastening pins 22 are extended whereby the closure may be fastened to the disk. This closure has a number of teeth 23 formed thereon'corresponding-in pitch'and shape to the teeth 6 of the disk so that after the closure is mounted in position an unbroken series of teeth will extend around the outer end of the disk. V

Formed in the disk, at the bottom of the groove 17 is a recess communicating with the groove and adapted to receive an adjusting bolt 24: one half of which is provided with right hand screw threads and the other half being provided with left hand screw threads. One end of this adjusting bolt 24 is received in a depression 25 formed by an extended portion of the recess and the opposite end of the bolt has a kerf to receive a screw driver or the like whereby the bolt may be rotated. Intermediate the ends of the groove 17 and the recess, the disk is cut out to form a notch 26 within which a knurled barrel 27 is arranged and which is fixed to the adjusting screw 24. The tongue 18 of the jaw 20 which is received in the groove 17 is provided with screw threads engageable with the screw threads on the corresponding end of the adjusting bolt 24. The tongue 18 of the opposite jaw 19 is also provided with oppositely formed screw threads engaging the screw threads of the corresponding ends of the adjusted boltso that when the latter is rotated the jaws will be caused to move toward or away from each other according to Eh? direction of rotation of the adjusting This rotary movement of the bolt is accomplished through the medium of the knurled barrel 27 which the operator may manipulate with his fingers.

After being assembled in the manner above described the jaws may be applied to a bolt or nut and by swinging the handle in' one direction the pin will freely ride over the edge of the teeth 6 and 23 while swing.

ing movement of the handle in the opposite direction will cause the pin to turn the ratchet disk thus imparting the necessary Igtiovement to the jaws for turning the nut or olt.

From the foregoing it will be observed that a very simple and durable ratchet Copies of this patent may be obtained for jaws mounted for slidingmovement 1n the slot, one end of the slot having a closure mountedtherein and provided with teeth to complete an annular series of teeth for the said disk, and means carried by the disk and engageable with the j awsto move the I latter toward and away from each other through the said slot.

' 2. In a ratchet wrench, the combination of a handle having'acasing mounted at one end, a disk rotatably mounted in the casing and provided with teeth at its marginal edge and having a diametrically extending slot opening at one edge of the disk, a pair of jaws mounted for sliding movement in the slot, one end of the slot havinga closure mounted therein and provided with teeth to complete an annular series of teeth for the said disk, and means carried by the disk and engageable with the jaws to move the latter toward and away from each other through the said slot, the said closure having lugs fixed to the said disk for maintaining the said closure in rigid position at the end of the said slot.

In testimony whereof I affix my signature in presence of two witnesses.

r V JONAS F. BRIOR. V

Witnesses: v

C. E. GooDEAR CHAS. E. HAASE.

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.? 

